Remotely controlled gun mount



REMOIELY CONTROLLED GUN MOUNT Filed Nov. 14, 1939 5 Sheets-Sheet} INVENTOR. George Bc'zrnharf s A'ITORN May 26, 1942. G. E. BARNHART REMOTELY CONTROLLED GUN MOUNT Filed Nov. 14, 1939 5 Sheets-Sheet 2 INVENT OR.

George E. Bafhhmrf.

ATTORNEY.

May 26, 1942- G. E. BARNHART I 2,284,611

' REMOTELY CONTROI LED GUN MOUNT Filed NOV. 14, 1939 S'SheetS-Sheet 3 Fu lee INVENTOR.

286 George E. Barnhclrt ATTO Y.

G. E. BARNHART 202849511 REMOTELY CONTROLLED GUN MOUNT Filed Nov. 14, 1939 5 Sheets-Sheet 5 Patented May 26, 1942 STATES PATENT orric with 12 Claims.

This invention relates to improvements in gun mounts.

The general object of this invention is to provide an improved device for mounting guns such as machine guns.

Another object of the invention is to provide a hydraulically operated machine gun mount which is adapted to move the gun to various positions and retain .the gun in the adjusted position. 1

A further object of the invention is to provide a hydraulically operated machine gun mount wherein a plurality of the gun mounts may be interconnected for coordinated action.

A still further object of the invention is to provide in combination with the gun mount a hydraulically operated telescopic sight mount which is connected to the gun mount for coordinated action.

A still further object of the invention is a remotely controlled gun mount and a telescopic sight mount including means wherein actuation of the gun mount causes coordinated movement of the sight mount.

An additional object of my invention isto provide an improved gun control whereby the gun may be operated and/ or sighted from a point remote from the gun.

A further object of the invention is to provide a novel gun control including a sighting means remote from the gun and wherein means is provided for correcting the sighting means to correct for the remote location of the sight.

An additional object of my invention is to provide a novel means for correcting the sight of a gun. 4

Another object is to provide a' sight including novel means for advancing or retarding the sight, so that a speeding target may be properly led.

,Other objects and the advantages of this invention will be apparent from the following description taken in connection with the accompanying drawings, wherein:

-Fig. 1 is a fragmentary side view and section of an airplane showing a side view of my improved gun mount and telescopic sight mount;

Fig. 2 is a top plan view of a plurality of my improved gun mounts, telescopic sight mount and control valve and shows the connecting fluid conduits in broken lines;

Fig. 3 is an enlarged central vertical section through my improved gun mount;

Fig. 3A is a reduced fragmentary end view of the gun mount shown in Fig. 3;

Fig. 4 is a section taken on line J-4, Fig. 3;

Fig. 5 is a section taken on line 55, Fig. 3; Fig. 6 is a section taken on line 6-6, Fig. 3; .Fig. 7 is a front view of the gun mount shown in Fig. 3 on a reduced scale showing the sight' mount operating cylinders in section;

Fig. 7A is a section taken on line 1a--'|a, Fig. '7;

Fig. 8 is a reduced development of the sleeve member;

Fig. 9 is a reduced development of the interior of the housing member;

Fig. 10 is a reduced development showing the outside of the master cylinder;

Fig. 11 is a central vertical section through my improved telescopic sight mount;

Fig. 12 is a section taken on line 12-42, Fig. 11;

Fig. 13 is an enlarged sectiontaken on line 3 43, Fig. 11;

Fig. 14 is a section taken on line I l-It, Fig. 11;

Fig. 15 is an enlarged central vertical section through 'the'gun mount control valve;

Fig. 16 is a fragmentary section taken on line lB--l6, Fig. 15;

Fig. 17 is afragmentary section taken on line 41-41, Fig. 15;

Fig. 18 is a fragmentary section similar to Fig. 16 showing the valve turned to direct fluid to cause the gun mount to tilt downwardly; and

Fig. 19 is a view similar to Fig. 18 showing the valve turned to direct fiuid to cause the gun mount to tilt upwardly.

Although in the accompanying drawings I show my improved gun mount and sight mount associated with an airplane it will be understood that their use is not restricted solely to use on airplanes. but can he used on sea craft or land.

Referring to the drawings I have indicated my improved machine gun mount generally at 10. My improved telescopic sight mount is indicated generally at I2, the master control valve generally at B3 and one of the auxiliary gun mounts generally at M.

As shown the machine gun mount Hi includes a support member I4, a vertical operating portion [6 for causing lateral movement of the gun and a horizontal operating portion H for causing vertical action of the gun.

As shown the portion l1 includes a base member I8 having spaced upwardly extending end flanges l9 and 20 thereon and a centrally disposed depending hollow boss 2|. The flange It has a cylindrical aperture 22 therein of greater diameter than that of the aperture 22.

Positioned in the aperture 22 I provide a cylinder member 24 which is secured to the flange I9 by a plurality of keys 25 (see Fig. 4). The cylinder 24 projects beyond the flange I9 where it is externally threaded as at 26 to receive a threaded cap member 2'! which closes the end of the cylinder. The cap member 21 includes a conduit portion 28 which is externally threaded to receive a coupling member 29 to secure thereto one end of a flexible conduit member 30.

The end-of the cylinder 24 opposite the cap 21 is internally threaded as at 3| to receive an externally threaded plug member 32 which has a central aperture 33 and an offset, reduced, threaded aperture 34 therein.

Positioned in the central aperture 33 I provide a piston rod 35 having a packed piston head 36 on one end and the opposite end includes a reduced threaded portion 31. 32 includes a suitable packing gland member 38 surrounding the piston'rod 35.

Positioned in the threaded aperture 34 of the plug member 32 I provide a rigid metal conduit member 39 which extends a predetermined distance beyond the plug 38 and is connected by a suitable coupling member 40 to one end of a conduit 4|.

Surrounding the cylinder 24 I provide a sleeve member 42 the end of which adjacent the flange 20 is internally threaded as at 43 to receive a threaded cap member 44.

The cap member 44 has a central aperture 45 therein through which the reduced threaded portion 3'! of the piston rod 35 extends. The cap member 44 further includes an offset reduced aperture 46 through which the conduit 39 extends.

Mounted on the sleeve member 42 I provide a housing member 48 which at one side includes a reduced cylinder portion 49 (see Fig. '7). Both ends of the cylinder 49 are open and internally threaded as at 50 and One end of the cylinder 49 is closed by a threaded plug 52 which includes a conduit portion 53 connected by a suitable coupling member 54 to one end of a flexible conduit 55. The opposite end of the cylinder 49 is closed by a threaded plug 56 having a central aperture 51 and a plurality of reduced vent apertures 58 therein.

Positioned in the aperture 51 of the plug member 56 I provide a piston rod 59 which Within the cylinder has a packed piston head 60 thereon and at the opposite end includes a reduced threaded portion 6|.

Mounted on. the reduced portion SI of the pis-' ton rod 59 I provide a cross head 82 which extends towards the piston, rod 35 and has an aperture 63 therein in which the reduced portion 31 of the piston rod 35 is positioned. A nut 64 on the threaded portion 6I of the piston rod 59 secured the cross head 62 to the piston rod 59 and a nut 65 on the threaded portion 31 of the piston The plug member rod 35 securely clamps the piston rod 35 to the tioned in longitudinally extending keyways B9 in one end of a flexible conduit I02.

the outer face of the cylinder 24 (see Figs. 4 and 10).

From the foregoing it will be apparent that when the piston 36 moves towards the flange 20 it will move the sleeve 42 with it and the keys 58 will cause it to move in a straight line thereby through the medium of the keys 61 cause the housing 48 to rotate upwardly in a clockwise direction. When the piston 36 and the sleeve 42 move towards the flange I9 the keys 8! cause the housing to rotate downwardly in an anticlockwise direction. Furthermore when the piston rod 35 moves, the piston rod 59 is similarly moved through the medium of the cross head 82. Positioned at a right angle to the cylinder 49 the housing 48 includes an outwardly extending post I0 having a plate member II thereon on which a machine gun assembly 12 is adapted to be secured by-bolts I3 as shown in Fig. 1.

The vertical operating portion I6 includes a cylinder I4 which is internally threaded at the upper end as at I5 and at the lower end as at I6. Adjacent the lower end the cylinder is positioned in a bearing portion 11 of the support I5 and is prevented from rotating by a key I8. The upper end of the cylinder. 14 is closed by a threaded plug member I9 having a central aperture therein and the lower end of the cylinder I4 is closed by a similar plug member 8I having a central aperture 82 therein.

Positioned in the apertures 80 and 82 I provide a piston rod 83 which at the upper end includes a reduced threaded portion 84.

The upper plug member I9 includes a suitable packing gland 85 surrounding the piston rod 83 and the lower plug member 8| includes a similar packing gland\86 surrounding the piston rod 83.

Within the cylinder I4 the-piston rod 83 includes a packed piston head 81. The piston rod 83 has two longitudinally extending conduits 88 and 89 provided therein. The upper end of the conduit 88 opens through the side of the piston rod above the piston head 81 and the conduit 89 opens through the side of the piston rod below the piston head 81. Adjacent the lower end the piston rod 83 includes a conduit portion I00 with which the conduit 88 communicates and which is connected by a suitable coupling member IM to Opposite the conduitpo'rtion the piston rod includes a similar conduit portion I 03 with which the conduit 69 communicates and which is connected by a suitable coupling member I04 to one end of a flexible conduit I 05,

Surrounding the cylinder I4 I provide a sleeve member I06 the upper end of which is internally threaded as at I01 to receive a threaded cap member I 08.

The cap member I 08 has a central aperture I09 and a plurality of vent apertures IIO therein. The reduced portion 84 of the piston rod 83 is positioned in the central aperture of the cap member I08 and the two are firmly secured together by a nut II2. Thus when thepiston rod 83 moves it, through the medium of the cap member I08, moves the sleeve I06. v

Mounted on the sleeve I06 I provide a housing member I I3 which at one side includes a. reduced cylinder portion II4 (see Fig. '7). The housing H3 is rotatably mounted in spaced bearingportions II5 of the support I5 and includes enlarged flanges II6 which engage the adjacent faces of the bearing portions I I 5 to prevent vertical movement of the housing. The upper portion of the housing II3 above the upper bearing II 6 is positioned in the hollow boss 2I of the base member I8 and is secured thereto by a key H1 and a set screw II8.

Both ends of the cylinder II4 are open and internally threaded as at I I9 and I20. The upper end of the cylinder H4 is closed by a threaded plug I2I which includes a conduit portion I22 connected .by a suitable coupling member I23 to one end of a flexible conduit I24. The lower end of the cylinder H4 is closed by a plug member I25 having a central aperture I26 and a plurality of reduced vent apertures I21 therein.

Positioned in the central aperture I26 of the plug I25 I provide a piston rod I28 which within the cylinder II4 has a packed piston head I29 thereon and at the pposite end includes a reduced threaded portion I30.

Mounted of the reduced portion I30 of the piston rod I28 I provide a cross head I3I which extends towards the sleeve I06 andhas a portion I32 surrounding the sleeve which is secured thereto by a set screw I33. A nut I34 on the threaded portion I30 of the piston rod I28 secures the cross head to the piston rod I28.

The housing II3 has a plurality of longitudinally extending spiral keyways I35 therein similar to the keyways 66 of the housing 48.

The sleeve I06 has a plurality of longitudinally extending spirally arranged sets of keys I36 therein similar to the keys 61 of the sleeve 42. The keys I36 are positioned in the housing keyways I35.

To prevent the sleeve I06 from rotating I provide a plurality of longitudinally extending sets of keys I31 therein similar to the keys 68 of the sleeve 42 (see Fig. 6). The keys I31 are positioned in longitudinally extending keyways I38 in the outer face of the cylinder 14 similar to the keyways 69 in the cylinder 24.

From the foregoing it will be apparent that when the piston 81 moves downwardly it will move the sleeve I06 with it and the keys I31 will cause it to move in a straight line thereby through the medium of the keys I36 cause the housing I33 to rotate in a clockwise direction. When the piston 81 and the sleeve I06 move upwardly, the keys I36 cause the housing II3 to rotate in an anti-clockwise direction. Furthermore when the sleeve I06 moves, the piston I29 is similarly moved through the medium of the cross head I3I.

When the device I0 is mounted for operation the support I5 is adapted to be clamped by any suitable means to a supporting structure provided for that purpose.

My improved sight mount I2 is shown in detail in Figs. 11 to 14, inclusive, and includes a vertical support member I40 having a telescope carrier I4I rotatably mounted thereon. As shown the-telescope carrier I4I includes a central hollow housing I42 having an enlarged recess in the bottom hereof in which the upper end of a sleeve I44 which surrounds the support I40 is positioned. The upper end of the sleeve I44 is closed by a threaded cap I45 and the upper end of the support I40 is closed by a cap I46. The adjacent faces of the caps I45 and I46 include circular raceways in which balls I41 are positioned to form an anti-friction hearing. The housing I42 and the sleeve together by a set screw I48.

One side of the housing I42 includes a projecting horizontal cylinder portion I49 and the opposite side of' the housing includes a horizontal projecting cylinder portion I50. At the inner end I44 are secured of the cylinder I50 the housing includes a coaxial, enlarged, threaded recess I5I. The outer end of the cylinder I49 is threaded as at I52 and is closed by a threaded plug member I53 and the outer end of the cylinder is similarly threaded as at I54'and closed by a threaded plug member I55 having a vent aperture I56therein.

The cylinder I49 has a cylinder portion I51 depending therefrom, which is of the same internal diameter as the cylinder I49 but is of less length. A conduit I58 communicates with the interior of both cylinders adjacent the outer ends thereof.

The outer end of the cylinder I51 is threaded as at I59 and closed by a threaded plug member I60 which includes a conduit portion I6I con- H nected by a suitable coupling member I62 to one end of a flexible conduit'l63. The opposite end of the cylinder is threaded as at I64 and closed by a threaded plug I65 having a central aperture I66 anda plurality of ventapertures I61 therein.

Positioned in the central aperture I66 of the plug member I65 I provide a piston rod I68 2. portion of which is threaded as, at I69. Within the cylinder I51 the piston rod I68 has a packed piston head I10 thereon and the threaded portion I69 of the piston rod is engaged by a nut member I1I which is retained in engagement with the plug member I65 by a spun over portion I12 thereon engaging a flange on the nut.

Surrounding the piston rod I68 within the cylinder I51 between the piston head I10 and the inner face of the plug I65 I provide a coiled spring I14.

Positioned inthe threaded recess I5I I provide an externally threaded plug I15 which has a bore I16 therein coaxial with the cylinders I49 and I50 and of the same size. Positioned in the cylinders I49 and I50 and the bore I18 I provide a rod member I11 having in the outer surface thereof a pair of opposed straight spline keyways I18.

The cylinder portion I50 has a pair of opposed slots I19 therein in each of which a spline member I is positioned which extends into its associated keyway I19 to prevent rotation of the rod I11. The spline members I80 are shown as III retained in the cylinder I50 by a collar I8I sur rounding the cylinder and secured thereto by a set screw I82.

The rod I11 further includes a pair of opposed longitudinally extending spiral keyways I83. Within the cylinder I49 the rod I11 includes a reduced portion I84 having a packed piston head I85 thereon.

Within the cylinder I50 between the end of the rod I11 and the inner face of the plug member I55 I provide a coiled expansion spring I86.

Surrounding the rod I11 between the inner end of the cylinder I49 and the plug member I15 I provide a sleeve member I81 which intermediate its lengthhas a pair of opposed spline members I80 therein which are arranged at an angle to correspond to the pitch of the spline keyways I83 in the rod I11 in which they are positioned. Each face of the sleeve I81 has a circular ball race groove therein in which are positioned a plurality of anti-friction balls I89.

Surrounding the rod I11 between the inner end of the cylinder I49 and the adjacent face of the sleeve I81 I provide a plate I which the antifriction balls I89 at that end of the sleeve engage. Surrounding the rod .I1I between the inner face of the plug I 15 and the adjacent face of the sleeve I81 I provide a plate member. I 9| which the anti-friction balls at that end of the sleeve engage. The plug member I15 is adapted to be adjusted to maintain the correct pressure on the anti-friction balls I69 at all times.

Surrounding the sleeve I81 I provide a cylindrical housing member I92 having agear toothed segment I93 extending therefrom.

Extending upwardly therefrom the housing I42 includes a pair of spaced legs I94 between which a telescope gimbal ring I95 is pivotally supported on trunnions I96.

The gimbal ring I95 includes a depending gear toothed segment I91 which meshes with the segment I93. member I98 which may be of any desired type.

When the rod I11 is axially moved as will hereinafter be described, the spiral keyways cause the splines I88 to rotate the sleeve I81 and housing I92 whereupon through the medium of the gear segments I93 and I91 the telescope I98 will be tilted in one direction or another depending on whichdirection the rod I11 is moved.

Below the housing I42 and at the side of the support I40 I provide a horizontal tube I99 which includes a cylindrical chamber I99 at one side of the support and a cylindrical chamber I99" on the opposite side and has an aperture I99a through one side thereof intermediate the two cylinder portions.

The tube I99 is supported in bearing portions I 99b and I99e of a bracket member I99d which includes a hollow bOSs portion I99e surrounding the support and secured thereto by a bolt l99f and nut I99a.

The outer end of the cylinder portion I99 is internally threaded as at 200 and is closed by a solid threaded plug member 20I and the outer end of the cylinder portion I 92" is internally threaded as at 202 and is closed by a threaded plug member 203 having a vent aperture 204- therein.

Depending therefrom the cylindrical portion I99 includes a cylindrical portion 205 which is of the same internal diameter as the portion I 99' but is of less length.

A conduit 206 affords communication between the cylinders I99b and 205 adjacent the outer ends thereof.

The outer end of the cylinder 205 is internally threaded as at 201 and is closed by a threaded plug 208 which includes a conduit portion 209 connected by a suitable coupling member -2I0 to one end of a flexible conduit H2. The opposite end of the cylinder is threaded as at 2l3 and closed by a plug member 2 having a central aperture 2I5 and a plurality of reduced vent apertures 2| 6 therein.

Positioned in the central aperture 2I5 of the plug member 2 I4 I provide a piston rod 2" which includes a threaded portion 2I8. Within the cylinder 205 the piston rod 2I1 has a packed piston head 2I9 thereon and exterior thereof is en- The gimbal ring supports a sight.

spline member 225 (see Fig. 12) in the cylinder I92.

The piston head 223 and the slide head 224 are connected by a rigid piston rod 226 the side of which nearest to the support I5 is provided with a gear toothed rack portion 221.

Mounted on the vertical sleeve I44 I provide a collar 228 having a segment of gear teeth 229 thereon which extends through the aperture I93 in the tube I90 and meshes with the gear toothed rack portion 221 of the piston rod 226. The collar 228 is shown as secured to the sleeve I44 by a key 230 and by nuts 23I on a threaded portion 232 of the sleeve.

Positioned in the cylinder portion I 99" between the slide head 224 and the inner end of the plug member- 203 I provide a coiled expansion spring 233.

When the piston rod 226 is reciprocated as will be described hereinafterthe rack 221 rotates the collar 228 which in turn through the medium of the vertical sleeve I44 swings the telescope mount I about the axis of the support either to the right or the left depending upon which direction the piston rod 226 is moved.

The flexible conduit I63 of the telescope sight mount I2 is connected by a conduit indicated by the broken lines 235 in Fig. 2 to the flexible conduit of the gun mount I0 and the flexible conduit '2I2 of the telescope sight mount I2 is connected by a conduit indicated by the broken lines 236 to the flexible conduit I24 of the gun mount I0.

Thus it will be seen that when the horizontal sleeve 42 or the gun mount is moved outwardly by the piston 36 and the housing 48 rotates in a clockwise direction'to elevate the machine gun 12 thereon, the piston draws fluid into the cylinder 49 from the telescope mount cylinders I 49 and I51 whereupon the spring I86 forces the rod I11 towards the cylinder I49 thereby rotating the housing I92 and causing the telescope sight I98 to be swung upwardly.

When the direction of the gun mount piston 60 is reversed fluid is forced from the cylinder 49 into the cylinders I49 and I51 whereupon the piston I85 moves the rod I11 against the action of the spring I86 and the telescope sight I98 is swung downwardly.

By adjusting the piston I10 by means of the nut "I the volume in the cylinders I 49 and I51 may be varied to either cause the telescope to lead or trail the elevating action of the gun mount I0.

55 When the vertical sleeve I06 of the gun mount gaged by a nut 220. The nut 220 is retained in moves downwardly to rotate the gun mount in an anti-clockwise direction, the piston I29 draws fluid into the cylinder from the cylinder II4 from the telescope sight mount cylinders I99 and 205 whereupon the spring 223 forces the piston rod 226 towards the cylinder I99 thereby rotating the telescope mount I about its axis in an anti-clockwise direction or to the left.

When the direction of the gun mount piston I29 is reversed, fluid is forced from the cylinder II 4 into the cylinders I99 and 205 and the piston rod 226 is moved against the action of the spring 223 whereupon the telescope mount I is swung about its axis in a clockwise direction or to the right. I

The auxiliary gun mount I4 shown in Fig. 2 is constructed and operates similar to the gun mount I0 previously described except that the telescope mount operating cylinders 49 and II 4 and their associated parts are omitted. I have therefore indicated like portions of the auxiliary gun mount 14 by similarly primed reference numerals.

When the auxiliary gun mount 14 is used the flexible conduit 36 of the gun mount 16 is conexternally threaded conduit 213. The body 264 further includes a-depending arm portion 264a,

nected to the flexible conduit 36 of the gun mount 14 by a conduit indicated by the broken lines 231 and the flexible conduit 41 of the gun mount 16 is connected to the flexible conduit 41' of the gun mount 14 by a conduit indicated by the broken lines 238.

Similarly the flexible conduit 162 of the gun mount 16 is connected to the flexible conduit 162 of the gun mount 14 by a conduit indicated by the broken lines 239 and the flexible conduit 165 of the gun mount 16 is connected to the flexible conduit 165' of the gun mount 14 by a conduit indicated by the broken lines 246.

The master control valve 13 is shown in detail in Figs. 14 to 19, inclusive, and-comprises two separate valve mechanisms, a vertical control valve 245, and a horizontal movement control valve 246.

The vertical movement control valve 245 includes a body portion 241 having a hollow base 248 which is adapted to be secured to a supporting structure by bolts 249. The body 241 has a tapered recess 256 therein in which a tapered valve plug 251 is positioned and which includes a valve stem 252 projecting out of the body through an aperture 253. The outer portion of the valve stem 252 includes a reduced polygonal portion 254 and a further reduced threaded portion 255.

The body 241 includes an elongated, depending, externally threaded inlet conduit 256 having an externally threaded lateral conduit portion 251 intermediate the end thereof and the body 241. Opposite the inlet -conduit portion 251 the body 241 includes an elongated angularly extending externally threaded outlet conduit portion 258 having a lateral externally threaded conduit portion 259 intermediate the end thereof and the body 241.

Between the conduits 256 and 258 the body at one side includes an externally threaded conduit 266 and opposite the conduit 266 an externally threaded conduit 261.

The valve plug 251 has a conduit 262 and a conduit 263 therein. The. ends of the conduits 262 and 263 are arranged at 90 to each other so that in one position of the valve plug 251 the conduit 263 communicates with the outlet conduit 258 and with the conduit 266 and the conduit 263 communicates with the conduit 261 and the inlet conduit 256 as shown in Fig. 18. In another position of the valve plug 251 the conduit 262 communicates with the inlet conduit 256 and the conduit 266 and the conduit 263 communicates with the outlet conduit 258 and the conduit 261 as shown in Fig. 19. When the valve plug. 251 is in a closed position as shown in Fig. 16, the valve plug conduits 262 and 263 do not communicate with any of the housing conduits 256, 258, 266 or 261.

The horizontal movement control valve 246 includes a body portion 264 having a tapered recess 265 therein in which a tapered valve plug 265 is positioned which includes a valve stem 261 which projects through an aperture 268 and has an operating handle 269 thereon. The housing 264 includes an externally threaded inlet conduit 216 and opposite an externally threaded outlet conduit 211. Arranged at 90 to the conduits 216 and 211 the body 264 includes at one side an externally threaded conduit 212 and opposite an having a polygonal aperture 2641) therein in which the polygonalportion 254 of the valve 245 is positioned. A nut 2,64cflrmly clamps the arm 264a to the valve stem 252 of the valve 245.

The valve plug 266 has a conduit 214 and a conduit 215 therein the opposite endsof each of which are arranged at to each other similar to the conduits 262 and 263 of the valve plug 251. Similar to the conduits of the valve plug 251 the conduits 214 and 215 of the valve plug 265 are adapted to direct fluid from the inlet conduit 216 to one' of the conduits 212 or 213 or direct fluid from the conduits 212 or 213 to the outlet conduit 211. v

The inlet conduit 216 has one end of a flexible conduit 216 secured thereto by a suitable coupling member 211. The opposite end of the flexible conduit 216 is connected to the conduit 251 by a suitable coupling member 218 (see Fig. 16).

The outlet conduit 211 has one end of a flexible conduit 219 connected thereto by a suitable coupling member 286. The other end of the flexible conduit 219 is connected by a suitable coupling member 281 to the outlet 258 (see Fig. 16).

The conduit 212 has one end of a flexible conduit 282connected thereto by a suitable coupling member 283 and the conduit 213 has one end of a flexible conduit 284 connected thereto by a suitable coupling member 285 (see Fig. 17)

The inlet conduit 256 has a supply'conduit 286 connected thereto by a suitable coupling member 281 and the conduit 259 on the outlet conduit 258 has a return conduit 288 connected thereto by a suitable coupling member 289.

The conduit 286 is adapted to be connected to the main fluid pressure line of the airplane (not shown) and'the conduit 289 is adapted to be connected to the main fluid return line of the airplane.

The conduit 266 has one end of a conduit 296 connected thereto by a suitable coupling member 291 and the conduit 261 has one end of a conduit 292 connected thereto by a suitable coupling member 293 (see Fig. 16).

As shown in Fig. 1 the conduit 292 is connected to the conduit 238 by a conduit indicated by the broken lines 295 and the conduit 296 is connected to the conduit 231 by a conduit indicated by the broken lines 296.

The conduit 284 is connected to the conduit 246 by a conduit indicated by the broken lines 291 and the conduit 282 is connected to the conduit 239 by a conduit indicated by the broken lines 298.

In operation when the operator desires to elevate the machine guns 12 and 12 he grasps the operating handle 269 of the master control valve 13 and without turning it swings the unit 246 towards himself thereby rotating the valve plug 251= of the unit 245 to the position shown in Fig. 19 wherein the valve plug conduit 262 communicates with the inlet conduit 256 and the conduit 266 and the valve plug conduit 263 communicates with the conduit 258 and the outlet conduit 261. Whereupon fluid under pressure is directed from the 'source through the conduits 296 and 296 into the conduit 231 and thence through the conduits 36 and 36' into the horizontal cylinder of each gun mount causing actuation thereof to tilt the guns upwardly as previously described. The fluid exhausted from the gun mount cylinders on this operation flows through the conduits 4 1-and 41 into and through the conduit 238 and thence through the conduits 295 and 292 to the valve conduit 258 and through the plug valve conduit 263 and the outlet conduit 258 into the return conduit 288.

When the operator desires to tilt the guns 12 and 12' downwardly, he swings the valve unit 246 away from himself thereby rotating the valve plug I to the position shown in Fig. 18 wherein the valve plug conduit 263 communicates with the inlet conduit 256 and the conduit 26I and the valve plug conduit 262 communicates with the outlet conduit 258. and the conduit 260.

Whereupon fluid under pressure is directed from the source through the conduits 292 and 295 into and through the conduit 238 and thence through the conduits 4| and 4|; into the horizontal cylinders of the gun mounts causing actuation thereof to tilt the guns downwardly as previously described. The fluid exhausted from the gun mount cylinders on this operation flows through the conduits 30' and 30 into and through the conduit 231 .and thence through the conduits 296 and 290 and through the valve conduits 260, 262 and 258 into the return conduit 288.

As the machine guns swing up or down as dei scribed the telescopic sight mount I2 is actuated for similar movement as previously described.

When the operator wishes to swing the machine guns 12 and 12' to the right he rotates the operating handle 269 of the master control valve I3 towards the right whereupon the valve plug conduit 214 of the unit 246 communicates with the inlet conduit 210 and the conduit 212 and the valve plug conduit 215 communicates with the conduit 213 and the outlet conduit 21I.

.thence through the valve conduit 213 and through the valve plug conduit 215 into the'valve outlet cond'uit21l.

When the operator wishes to swing the machine guns 12 and 12' to-the left, he rotates the control handle 269 of the master valve to the left thereby rotating the valve plug to a position wherein the valveplug aperture 214 communicates with the inlet aperture 210 and the conduit 213. Whereupon fluid under pressure flows from the source through the conduits 284 and 291 into and through the conduits I05 and I05 into the vertical cylinders of the gun mounts thereby causing actuation of the gun mounts as previously described to swing the guns toward the left. The exhaust fluid from the gun mount cylinders on this operation flows through the conduits I02 and I02 intoandthrough the conduit 239 into the conduits 298 and 282 and through the valve conduit 212. Thence through the valve plug conduit 215- into the outlet conduit 21I.

As the machine guns swing to the right or left as just described, the telescopic sight mount I2 is actuated for similar movement.

In using my improved device, the'sight may be remote from the gun. The gun is trained on the target and the target is watched through the sight, When the sight is on the target the gun is fired. The location of the strike" of the missile is noted. The members HI and 220 are then adjusted to bring the position of the strike into line with the sight. The sight and gun are then both pointed to the position of the strike. The gun is then shifted to point towards the target and its movement noted through the sight. When the sight and target are in line the guns are fired and the missile strikes the target- Successive corrections may be applied as desirable.

From the foregoing description it will be apparent that I have provided novel remotely controlled gun mount and a sight mount and have provided novel means for coordinating the actuation of the gun mount and the sight mount and for correcting due to the fact that the gun sight is remote from the gun.

. said piston means for shifting the sight member.

2. In a gun mount, a support, a cylindrical housing swivelled on said support, hydraulic piston operated means in said housing, means operated by said piston means for rotating said housing, a base surmounting said housing, a cylinder on said base, a tilting housing member having a gun base and mounted on said housing, other hydraulic operated piston means on said cylinder and means operated by said other piston means for rotating said housing member, a sight member remote from the gun base and means for shifting said sight member as gun base is shifted.

3. In a gun mount, a support, a cylindrical ton operated means in said housing, means oper atedby said piston operated means for rotating said housing, 'a base surmounting said housing,

cylinder on said base, a tilting housing member having a gun base and rotatably mounted on said housing, other'hydraulic operated piston means on said cylinder, means operated by said other piston means for rotating saidhousing member, a sight member, hydraulic means operated by said piston means for shifting the sight member and means to adjust the degree of shift of the sight member relation to the piston member.

4 In a gun mount, a support, a cylindrical "housing swivelled on said support, hydraulic means for swivelling said housing including a. cylinder having a piston and a piston rod thereon, means operated by said hydraulic means for shifting said piston, a base surmounting said housing, a housing member tiltably mounted on said base, other hydraulic means for tilting said housing, said tilting housing including a gun base and including a second cylinder having a second piston, a second piston rod on the second piston, means operated by said other hydraulic means for shifting said second piston rod, a telescopic sight mount, means to swivelly and tiltably support said sight mount and means operatedby said piston rods for swivelling and tilting said sight mount.

5. In a gun mount, a support, a cylindrical piston in said horizontal cylinder and including a piston rod connected to. said last mentioned sleeve, means to direct fluid into said horizontal cylinder, and means whereby when said last mentioned sleeve is, moved axially said housing is tilted, a sight member and hydraulic means operated by said piston means for shifting the sight mount relative tothe position of the gun mount.

6. In a gun mount, a support, a cylindrical housing swivelled on said support, means for swivelling said housing including a cylinder having a piston and a piston rod thereon, hydraulic means for shifting said piston, a base surmounting said housing, a housing member tiltably mounted on said base, means for tilting said housing, said tilting housing including a gun base, and including a second cylinder including a second piston, a second piston rod on the last mentioned piston, hydraulic means for shifting said second piston, a sight mount, means to swivelly and tiltably support said sight mount and means operated by said pistons for swivelling and tilting said mount and means to change the position of the sight mount relative to the position of the gun mount.

'7. In a gun mount, a support, a cylindrical housing swivelled on said support, a cylinder within said housing, a piston in said cylinder, means to direct fluid into said cylinder to axially "shift said piston, means whereby axial movement of said piston rotates said housing, a base surmounting said housing, a horizontal cylinder on said base, a sleeve surrounding said horizontal cylinder, a tilting housing member having a gun base and surrounding said sleeve, a piston in said horizontal cylinder and including a piston rod connected to said last mentioned sleeve, means to direct fluid into said horizontal cylinder, means whereby when said last mentioned sleeve is moved axially said housing is tilted, a sight member remote from the gun base and means to shift the sight member as the gun base is shifted.-

8. In a gun mount, a support, a cylindrical housing swivelled on said support, a cylinder within said housing, a piston in said cylinder, means to direct fluid into said cylinder to axially shift said piston, means whereby axial movement of said piston rotates said housing, a base surmounting said housing, a horizontal cylinder on said base, a sleeve surrounding said horizontal cylinder, a tilting housing member having a gun base and surrounding said sleeve, a piston in said horizontal cylinder and including a piston rod connected to said last mentioned sleeve, means to direct fluid into said horizontal cylinder, means whereby when said last mentioned sleeve is moved axially said housing is tilted, a sight member, hydraulic means operated by said piston means for shifting the sight member and means to adjust the degree of shift of the sight member relative to the piston member.

-9. In a gun mount, a support, a cylindrical housing swivelled on said support, a cylinder within said housing, a piston in said cylinder, means to direct fluid into said cylinder to axially shift said piston, means whereby axial movement of said piston rotates said housing, a horizontal cylinder on said base, a sleeve surrounding said horizontal cylinder, a tilting housing member having a gun base and surrounding said sleeve, 9.

v member.

10. In a gun mount, a support, a cylindrical housing swivelled on said support, a sleeve in said housing, a cylinder in said sleeve and anchored to said support, a piston in'said cylinder and having a piston rod connected to the sleeve and projecting from both ends of said cylinder, means to direct fluid into either end of said cylinder to axially shift said piston sleeve, means whereby axial movement of said sleeve rotates said housing, a base surmounting said housing, a horizontal cylinder on said base, a sleeve surrounding said horizontal cylinder, a tilting housing member having a gun base and surrounding said sleeve, a piston in said horizontal cylinder and including a piston rod connected to said last mentioned sleeve and extending through one end of said horizontal cylinder, meansto direct fluid into either end of said horizontal cylinder, and means whereby when said last mentioned sleeve is moved axially said housing is tilted.

11. In a gun mount, a support, a cylindrical housing swivelled on said support, a cylinder within said housing, a piston in said cylinder, means to direct fluid into said cylinder to axially shift said sleeve, means whereby axial movement of said piston rotates said housing, said housing including a lateral reduced cylinder having a piston and a piston rod thereon connected to said sleeve.and extending from one end and having an inlet conduit at the other end, a base surmounting said housing, a horizontal cylinder on said base, a sleeve surrounding said horizontal cylinder, a tilting housing member surrounding said sleeve, a piston in said horizontal cylinder and including a piston rod connected to said last mentioned sleeve, means to direct fluid into said horizontal cylinder, means whereby when said last mentioned sleeve is moved axially said housing is tilted, said tilting housing including a gun base and including a reduced cylinder having a piston therein-connected to said horizontal sleeve and having a piston rod extending from one end thereof and having an inlet at the other end, a. telescopic sight mount including a support member having a body rotatably mounted thereon and including opposed cylinder portions, a rodmember having a piston head positioned in one cylinder portion and engaged by a spring in the other cylinder portion, a housing member surrounding said rod intermediate said portions, a telescopic sight member mounted on said sight mount and means operated by fluid pressure in said reduced cylinders for operating said sight member.

12. In a gun mount, a support, a cylindrical housing swivelled on said support, a means for swivelling said housing, said housing including a cylinder having a piston and a piston rod thereon, hydraulic means for shifting said piston, a base surmounting said housing, a housing member tiltably mounted on said base, other means for tilting said housing, said tilting housing including a gun base and including a second cylinder including a second piston, a second piston rod on the last mentioned. piston means, hydraulic means for shifting said second piston, a telescopic sight mount including a support member having means whereby when said rod is axially movedsaid member will be rotated, an auxiliary cylinder adjacent said first sight mount cylinder and communicating with the interior of the first reduced cylinder portion adjacent the outer end thereof,

said auxiliary cylinder including an inlet conduit, means to vary the fluid contained volume of said auxiliary cylinder, means whereby movement of said gun mount reduced piston will cause movement of said sight mount piston, said sight mount including a frame member, an elongated cylinder on said frame member, a piston rod in said last mentioned cylinder and having a piston thereon, meshing gear toothed members on said body and frame member piston rod, a second auxiliary cylinder adjacent said piston end of said elongated cylinder and communicating therewith, said second auxiliary cylinder including an inlet conduit, means to vary the fluid volume of said second auxiliary cylinder, and means whereby when said vertical reduced cylinder piston is moved it causes actuation of said piston in said elongated cylinder of said sight mount.

GEORGE E. BARNHART. 

